Recycled Gypsum: A Smart Answer to Farmers' Rising Fertilizer Costs
- Holly Larsen

- Dec 17, 2025
- 5 min read
As U.S. farmers grapple with a 37% increase in fertilizer costs since 2020 and face what the National Corn Growers Association calls a "four-alarm fire in the countryside," one overlooked solution sits in our construction waste streams: recycled gypsum. While Washington debates bailout packages, farmers need sustainable, cost-effective alternatives that address the root causes of their financial squeeze, not just temporary band-aids.

The Fertilizer Crisis No One's Talking About
Recent reporting highlights the crushing economic pressure on American farmers. Labor costs are up 47%, seeds cost 18% more, and fuel prices have jumped 32%. But the 37% spike in fertilizer costs since 2020 represents one of the most significant and persistent drains on farm profitability. With 65% of farmers more concerned about their finances than a year ago and farm bankruptcies climbing to alarming levels, finding affordable alternatives to conventional fertilizers isn't just smart economics—it's essential for survival.
Meanwhile, an estimated 15 million tons of gypsum wallboard ends up in U.S. landfills annually. This represents an enormous missed opportunity: high-quality calcium sulfate that could be helping farmers instead of taking up landfill space.
Why Recycled Gypsum Makes Economic Sense Now
Recycled gypsum, properly processed from construction and demolition waste, offers the same agricultural benefits as mined gypsum at a fraction of the cost. As a soil amendment, it provides approximately 23% calcium and 18% sulfur—two essential plant nutrients that would otherwise require separate fertilizer purchases.
But here's where the economics get really compelling for today's squeezed farmers: recycled gypsum typically costs 30-50% less than mined gypsum and dramatically less than synthetic fertilizers on a per-nutrient basis. When you're facing a 37% increase in fertilizer costs, that kind of savings can mean the difference between a profitable season and adding to the bankruptcy statistics.
Multiple Benefits from a Single Application
Unlike synthetic fertilizers that primarily address immediate nutrient needs, gypsum delivers compounding value over multiple growing seasons. A single application improves soil structure for 3-5 years while providing nutritional benefits for at least two full seasons. This extended benefit period means farmers can stretch their input dollars further—a critical advantage when considering equipment purchases are being delayed due to financial concerns.
The soil structure improvements alone can reduce the need for costly tillage operations. Better water infiltration means irrigation costs decrease. Improved nutrient availability means you may need less phosphorus fertilizer over time. These cascading benefits add up to significant savings that help offset those rising input costs across the board.
Addressing the Sulfur Deficit
Here's something many farmers don't realize: sulfur deficiencies are becoming increasingly common across U.S. farmland. As clean air regulations reduced sulfur dioxide emissions (a good thing for public health), agricultural soils lost their incidental sulfur inputs from atmospheric deposition. Meanwhile, modern high-yield crop varieties demand more sulfur than ever before.
This creates a genuine need that recycled gypsum addresses efficiently. Rather than purchasing separate sulfur fertilizers at premium prices, farmers get both calcium and sulfur in a single, affordable amendment. Given current economic pressures, this two-for-one value proposition is especially attractive.
The Climate and Sustainability Angle
For farmers increasingly concerned about climate change impacts—cited as a major worry in recent industry surveys—recycled gypsum offers additional advantages. By diverting waste from landfills, using it reduces methane emissions from decomposing gypsum in oxygen-poor landfill conditions. The processing requires minimal energy compared to mining and refining operations, resulting in a smaller carbon footprint.
Furthermore, gypsum's ability to improve soil structure helps increase water infiltration and reduce erosion, making farms more resilient to the extreme weather events that climate change is bringing. These aren't abstract environmental benefits—they're practical advantages that protect farmland and yields during increasingly volatile weather patterns.
Quality Standards and Practical Considerations
A reasonable concern about recycled gypsum is quality control. Not all recycled gypsum is created equal, and farmers should ensure they're getting properly processed material free from contaminants. Reputable suppliers provide testing certificates showing purity levels that meet or exceed agricultural standards.
The good news is that quality recycled gypsum processing has matured significantly in recent years. Advanced separation technologies can remove paper backing, metal fasteners, and other construction debris, yielding a product that's agriculturally equivalent to mined gypsum. Some agricultural universities have conducted side-by-side trials showing no performance difference between high-quality recycled gypsum and mined alternatives.
Beyond Bailouts: Building Long-Term Resilience
Government assistance packages, like the recently announced $12 billion farmer relief program, provide crucial short-term help. But as analysts rightly note, these bailouts don't address the fundamental economic pressures farmers face. The question becomes: is Washington just going to lurch from emergency to emergency, or will we find sustainable solutions?
Recycled gypsum represents exactly the kind of market-based, sustainable solution that builds long-term farm resilience. It reduces input costs, improves soil health for multiple seasons, diverts waste from landfills, and lessens dependence on volatile fertilizer markets. These aren't temporary fixes—they're structural improvements to farm economics.
Making It Work on Your Operation
For farmers interested in trying recycled gypsum, start with a soil test to identify fields where calcium or sulfur deficiencies exist, or where sodium levels are elevated and soil structure is compromised. These are the acres where you'll see the most dramatic return on investment.
Application rates typically range from 500-2000 pounds per acre depending on soil conditions. Even at the upper end of that range, the cost per acre is modest compared to comprehensive fertilizer programs. And because the benefits extend over multiple seasons, the per-year cost becomes even more attractive.
Fall application allows time for the gypsum to begin working before spring planting, though spring applications still provide substantial benefits. The key is working with reputable suppliers who can provide documentation of product purity and agricultural suitability.
A Circular Economy Success Story
The agricultural sector faces genuine structural challenges that won't disappear with trade deals or temporary relief payments. Rising input costs, narrowing margins, and increased weather volatility are here to stay. Solutions need to address these realities head-on.
Recycled gypsum represents something too rare in agriculture today: a genuine win-win-win scenario. Farmers reduce input costs and improve soil health. Communities divert construction waste from expensive landfills. The environment benefits from reduced mining, lower emissions, and better soil conservation. This is what a functioning circular economy looks like—waste from one sector becoming a valuable resource for another.
As American agriculture navigates these challenging times, farmers need every advantage they can find. Recycled gypsum won't solve every problem facing U.S. agriculture, but it's exactly the kind of practical, economical solution that can help farms weather the current storm while building healthier, more resilient soil for the future.
Sometimes the best answers aren't more complex regulations or bigger bailouts—they're smart solutions hiding in plain sight, waiting for farmers to recognize their value.





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